baber/WOPTO huggingface dataset:
Patent GB-990617-A (GB)
Title: Process for the selective hydrogenation of hydrocarbon mixtures
IPC: B01J37/02
Filed: 1963-12-30
Abstract: Hydrocarbon mixtures containing compounds having more than one olefinic bond and/or at least one acetylenic bond, but substantially free from acetylene, are selectively hydrogenated to mono-olefins in the presence of a catalyst comprising at least one metal of Group Ib, i.e. copper, silver and gold, supported on an inert carrier.  The process may be applied to hydrocarbon mixtures boiling below 216 DEG C., suitably those obtained by cracking processes, and these include full boiling range gasolines, narrow fractions thereof, and substantially pure butadiene and isoprene.  The Group Ib metal may constitute 1-15% by weight of the total catalyst; silver and/or copper supported on silica gel is preferred.  A preferred catalyst is made by impregnating the support with copper and/or silver complexed with a water-soluble nitrogen base, particularly ammonia or ethylene diamine, and calcining.  Hydrogenation may be effected at 35-345 DEG C., at 1-50 atmospheres, and in the vapour, liquid or mixed phase, liquid being preferred as the hydrogenation is exothermic, and at a L.H.S.V. of 0.5-300 kg. olefine and/or acetylene per kg. catalyst; the hydrogenating gas, which contains at least 60% H2 by volume, may be the gas obtained in the catalytic reforming of gasoline fractions. Examples describe the selective hydrogenation of isoprene (2-methylbutadiene-1,3) to isoamylene.
Patent GB-1241024-A (GB)
Title: Pharmaceutical tablet base and a process for its manufacture
Inventor: HANSSEN DIETER
IPC: A61K9/20
Filed: 1968-10-29
Abstract: 1,241,024. Tabletting compositions. BOEHRINGER INGELHEIM G.m.b.H. 29 Oct., 1968, No. 51298/68. Heading A5B. A pharmaceutical tablet base is made by spray-drying a suspension of (a) finely divided silica or alumina, (b) a finely divided inert excipient and, (c) an aqueous solution of a water-soluble binder in proportions such that the spray-dried preparation contains the constituents in the proportions by weight of 1-20% of (a), 60-98% of (b) and 1-20% binder. The viscosity of the suspension may be adjusted prior to spray-drying by introducing a gas into and/or foaming the suspension. In making tablets, the base is preferably mixed with an additional material which is the product of spray-drying a suspension of finely divided silica or alumina in a solution of a swellable binder. Suitable binders (for both spray-dried materials) are soluble starch (APS starch) and hydrophilic cellulose derivatives.
Patent GB-1379142-A (GB)
Title: Transfer elements and process
IPC: B41M5/10
Filed: 1972-11-07
Abstract: 1379142 Transfer element COLUMBIA RIBBON and CARBON MFG CO Inc 7 Nov 1972 [29 Dec 1971] 51303/72 Heading D2B A process for preparing a self-supporting liquid ink-releasing, transfer element comprises (a) applying to a casting surface a thin layer of a composition comprising a synthetic thermoplastic film-forming resin, a solid pore forming material and a volatile liquid vehicle, (b) forming the layer into a self-supporting layer containing the solid pore-forming material, (c) removing the solid pore-forming material to form a porous layer; (d) and impregnating the porous layer with liquid non-drying ink to produce the transfer element. A backing layer of synthetic thermoplastic film-forming resin may be applied over the porous layer to improve the durability of the transfer element.
Patent GB-1456195-A (GB)
Title: Methods of recovering copper from scrap metals
IPC: C22B15/00
Filed: 1972-11-07
Abstract: 1456195 Recovering copper from scrap metal VANDERVELL PRODUCTS Ltd 27 Nov 1973 [7 Nov 1972] 51344/72 Heading C7D Copper is recovered from scrap by contacting with a molten low melting point metal (e.g. lead or thallium) which dissolves copper and with which the copper forms a monotectic composition which is of different density from the solution of copper in the molten metal which is in equilibrium with the monotectic composition formed and separating the monotectic composition from said solution. The scrap metal may comprise tin containing bronze or brass bearing material on steel backing strip and may be added to a bath of molten lead which is heated to the monotectic reaction temperature and the monotectic composition separated off and either used directly in the manufacture of bearing materials or held at the reaction temperature to separate copper from the solution of copper in lead. The process may be carried out in an inert atmosphere and the lead bath may be heated to 990 to 1,000C to ensure rapid dissolution of copper and subsequently cooled to the monotectic reaction temperature and the monotectic composition which may additionally contain tin separated off (e.g. by liquid metal centrifuge).
Patent GB-1439520-A (GB)
Title: Double-walled rod of flexible tubular material
IPC: A22C13/02
Filed: 1973-11-06
Abstract: 1439520 Sausage S.T. casings HOECHST AG 6 Nov 1973 [9 Nov 1972] 51485/73 Heading A2B [Also in Division B8] A hollow tubular rod of flexible material suitable for use, e.g. in the manufacture of tubular packaging, comprises an inner tube 2 substantially free from folds within a shirred outer tube 1, the inner tube being integral with, or joined to, the outer tube at one of its ends and sealed at the other and the inner and outer tubes being of substantially equal length. The rod is formed by fitting a shirred stick of flexible material over a hollow former, or inserting the hollow former into the shirred stick, sealing one end of the stick e.g. by partially unfolding the stick in the region of one end, and gathering together the material at that end to form a seal, and pushing the sealed end of the shirred stick into the central orifice of the hollow former until the sealed end within the former is approximately inside the other end of the stick which lies on the outside of the former such that a double-walled rod is formed. The. double-walled rod is then withdrawn from the former in the direction opposite to the direction in which the sealed end of the stick was pushed into the central orifice of the former. In a modification of the process the first two steps may be reversed. During the process the shirred stick is turned inside out so that any lubricant is present on the outer wall of the inner tube the inner surface of which is smoother, and less structured, than the outer surface. In a process for the manufacture of a tubular packaging filled with pasty material the rod is placed over the filling tube of a filling device so that orifice of the filling tube is adjacent the seal 7 of the inner tube 2. The pasty substance, e.g. meat emulsion, is then fed into the tube 2 which is progressively pushed forward as the shirred, outer, tube 1 is continually unfolded from the end 3. The rods may be made from tubes 25 m. long. The casing may be made from cellulose hydrate, a synthetic polymer, or paper impregnated with synthetic polymer.
Patent GB-1521718-A (GB)
Title: Flame blocking device for insertion in a gas pipe
IPC: F23N5/24
Filed: 1975-12-17
Abstract: 1521718 Flame prevention in pipes HARTMANN & BRAUN AG 17 Dec 1975 [13 March 1975] 51648/75 Heading A5A [Also in Division F2] A flame blocking device comprises a porous cup-shaped member 5 to prevent flood-back and a spring-loaded closure member 14 held in the open position by fusible material 17 surrounding the end of the valve stem 13 which melts on a rise of temperature to allow the valve to close under the influence of a spring 20. The valve casing comprises two parts 1, 2 of hexagonal external shape and a matching hexagonal part 21 locked in axial position by a screw (22) Fig. 2 (not shown) which comprises in a groove 25 in the casing part 1.
Patent GB-1474714-A (GB)
Title: Electron tube
IPC: H01J9/04
Filed: 1974-11-29
Abstract: 1474714 Cathode materials and processing PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 Nov 1974 [4 Dec I973 11 Oct 1974] 51804/74 Heading H1D To prevent damage to a thermionic cathode of e.g. a CRT or transmitting valve by heat from sealing of the envelope at 300-450C and by water droplet damage during evacuation particularly in large envelopes of 2 Litre upward, the active carbonates (e.g. Sr-Ba) are coated on the cathode in suspension in liquid together with two binders, a first decomposing readily, the second stable for minutes up to 450C, but decomposing without residue at higher temperatures, e.g. activation in vacuo at 1200C. The second binder is selected from poly-imides, high M.W. acrylate resins and nylons; the first may be nitrocellulose. Different solvents for the two binders may be used; the solutions may be premixed before suspending the carbonates, or suspension may initially be in either, with the other added later before spray coating. Alternatively interleaved sprayed layers of the suspension in the first binder solution, and of the second binder solution, may be applied. The cathode is dried at 300C for 1 minute after formation before envelope welding takes place, followed by evacuation and activation.
Patent GB-1065567-A (GB)
Title: Preparation of 4-hydroxy-6,7-disubstituted-3-carboalkoxyquinolines
IPC: C07D491/056
Filed: 1965-12-08
Abstract: 4 - Hydroxy - 6,7 - disubstituted - 3 - carbo-alkoxyquinolines are prepared (a) by reacting a dialkyl 3,4 - disubstituted - anilinomethylene-malonate with phosphorous oxychloride in a molar ratio of 1 : 2 or more and hydrolysing in acid medium the novel 4-chloro-6,7-disubstituted - 3 - carboalkoxy quinoline thus obtained, or (b) by reacting the dialkyl 3,4-disubstituted - anilinomethylenemalonate with phosphorous oxychloride in a molar ratio of 1 : 1 or less.  Dimethyl 3,4 - diisopropoxy - anilinomethyl-enemalonate is prepared by reacting 3,4-diisopropoxyaniline with dimethylmethoxymethyl-enemalonate in ethanol.  Diethyl 3,4-diisobutoxy - anilinomethylenemalonate is prepared in a similar manner.
Patent GB-1170170-A (GB)
Title: Rope Crowd for a Knee Action Shovel.
Inventor: WILSON ELLIS C
IPC: E02F3/30
Filed: 1967-11-16
Abstract: 1,170,170. Knee action shovel excavators. RUSTON-BUCYRUS Ltd. 16 Nov., 1967, No. 52104/67. Heading E1F. The undersurface of the crowd handle 20 of a knee action shovel is so supported by guide means in the forms of rollers 38 or a slideway in the head 34 of the A frame of the excavator that the handle can be reciprocated of the guide means by appropriate winding in or out of the crowd, and retract cables that are appropriately associated with the handle.
Patent GB-1205465-A (GB)
Title: Improvements relating to portable cooking appliances
IPC: F24C3/14
Filed: 1968-11-04
Abstract: 1,205,465. Portable cooker. COMPANION HEATERS PTY Ltd. 4 Nov., 1968 [10 Nov., 1967], No. 52165/68. Heading A4D. A portable cooking appliance comprises a carrying case 1, two hinged lid members 2 and 3, and a pivotally mounted burner assembly 9 within, the burner being maintained in a transport position by the closed lid members but being capable of swing- ing down into a functional position with the lids open, as shown, in which the case and lids form a shield on three sides. Movable legs 14 and 15 pivotally connected with the burner assembly at the points 16 and 17 may be used to render the appliance rigid by connection with the lids 2 and 3.
Patent GB-1385276-A (GB)
Title: Electronic timepieces
IPC: G04F8/00
Filed: 1972-11-13
Abstract: 1385276 Electronic watches SUWA SEIKOSHA KK 13 Nov 1972 [18 Nov 1971] 52335/72 Heading G3T In an arrangement for adjusting or setting the seconds indication of a crystal oscillator controlled electronic watch, wherein a pulsed stepping motor SS (Fig.1) drives hands in known manner, a switch SW is repeatedly opened and closed whereby the motor may receive driving pulses at a faster rate than normal. Thus, the motor is normally energized by pulses at 1 HZ from a frequency divider counter outputs OUT 1  OUT 2  via inverters I 2  I 3  and via a NOR gate NR 1  and inverter I 4  respectively. Thereby the motor field coil L 1  receives current pulses in opposite directions alternately, to rotate 'its' rotor RT. To reset the seconds indication, a switch SW is first closed and a multi-vibrator comprising NOR gate NR 2 , inverter Is and time constant circuit is triggered producing an output voltage at OUTS so that a current in the same direction as current from terminal OUT 2  flows through L. At the same time the divider counter is reset by the trigger pulse applied to its terminal PR. If SW is now opened an output voltage is produced at OUT 1  and reverse current will flow in L. Thus if SW is successively opened and closed the rotor RT will be advanced through 120 degrees (corresponding to 2 secs) each time the switch SW is operated. When the required adjustment is made the switch is left open.
Patent GB-1203218-A (GB)
Title: A door assembly
Inventor: NUTTALL HARRY
IPC: A62C2/18
Filed: 1966-11-23
Abstract: 1,203,218. Self-closing sliding door; bolt fastenings. BOLTON GATE CO. Ltd. 25 Oct., 1967 [23 Nov., 1966], No. 52404/66. Headings E2M and E2A. [Also in Division A5] A door assembly shown in Fig. 1 consists of a door 10 movable along tracks 11 and 12, a counterweight 16 movable along a parallel track 14, cable means 17, 20 connecting the door and counterweight over pulleys 19 and 21 in such a way that the door and counterweight are capable of movement only in opposite directions, and at least one weight 22 to cause the door to close gently. A spring loaded catch (see Fig. 2) may be incorporated in the assembly which enables the door to remain open. The catch includes a rod 25 attached to the door by means of a sleeve 26 and urged by a spring 27 acting between the sleeve 26 and fixed washer 28 towards the top of the door so that when the door is open it can abut the lower end of a release catch 29, pivotally attached to the door frame. The rod 26 can be lowered to release the door either by being pulled downward to clear the catch 29 or by turning a release handle 30 to which is attached a release pin 31 adapted to act against a second pin 32 mounted on the rod 25 to lower the latter. Retaining pins 33 and 34 mounted respectively on the door and the release handle 30 prevent the rod 25 from being raised by the spring 27 to an unnecessary degree. The rod 25 and handle 30 are mounted on opposite sides of the door and are able to independantly release the door 10. A fire safety device may also be incorporated into the release catch.
Patent GB-1530150-A (GB)
Title: Process for making reinforced and filled high density rigid polyurethane foam products
IPC: C08G18/00
Filed: 1975-12-23
Abstract: 1530150 Reinforced and filled polyurethane foams TECNIK INTERNATIONAL CORP 23 Dec 1975 [24 Dec 1974] 52651/75 Heading C3R A process for manufacturing in a mould a rigid polyurethane foam product having a density of from 10 to 80 lb/ft<SP>3</SP> comprises mixing an isocyanate component and a polyol component comprising a highly branched polyol having a molecular weight per branch of 300 to 800, at least one said components including a suitable blowing agent, mixing in 10 to 75% wt. of the foamed product of silica sand, having a mesh size of from No. 30 to 200 U.S. sieve, and from 3 to 25% wt. of the foamed product of chopped glass fibres 1/32 inch to 1 inch in length, each fibre comprising a plurality of filament strands, and pouring the mixture into the mould to foam therein. Preferably a fluorinated halogenated saturated aliphatic hydrocarbon solvent blowing agent having a boiling point greater than 115‹ F., e.g. trichloro-trifluoroethane, is mixed with the polyol component, the polyol and isocyanate components are preheated to 115‹ F. and mixed and the silica sand and glass fibres are mixed in to provide a mixture of viscosity 1200 to 3600 c.p.s. A suitable isocyanate component is polymethylene polyphenyl isocyanate. Suitable polyols are polyoxypropylene derivatives of pentaerythritol and a blend of polyols comprising propylene oxide derivatives of toluene diamine, glycerine and propylene glycol. Optional additives such as water, conventional catalysts and surfactants may be added to the reaction mixture. In the examples a closed mould is used and the resulting foamed product has a dense skin.
Patent GB-1158181-A (GB)
Title: Improvements in or relating to moulding machines and methods of moulding.
IPC: B29C59/00
Filed: 1966-11-25
Abstract: 1,158,181. Foamed articles. GROWN MACHINE & TOOL CO. 25 Nov., 1966 [26 Nov., 1965 (2)], No. 52792/66. Heading B5A. Foamed plastics articles, e.g. of polystyrene, are produced from finely-divided beads thereof impregnated with a blowing agent, e.g. butane, by a process in which certain quantities of the beads are partially foamed on a batch basis to a predetermined density, before supplying them to the moulds in which they are immediately further expanded, the rate of supply and consumption thereof in the mould being so related that the partially foamed beads are used immediately after prefoaming before they can change in density or otherwise deteriorate. In an embodiment described, beads are supplied from a hopper 18 to prefoamer 22 via tube 20, and then to the prefoam hopper 26 via tube 24 and then to the moulds 30 via line 28. The prefoamer (also Figs. 5-9, not shown) includes a metering device 120, stirrer 109, air supply means (Fig. 8, not shown) to effect a swirl of the beads therein, a discharge port (138) controlled by a photo-cell 158 connected to tube 24, cross-bars (164) to break up agglomerates and electrodes (166) to reduce agglomeration caused by electrostatic attraction. The prefoam hopper 26 (also Fig. 4, not shown) comprises a main cylindrical portion (42) and conical portion (44) having leads (48) to two moulds, the hopper also containing a sieve device (50) comprising a cylindrical portion (52) and conical screen (56) around which there is a spiral wire (58) to break up agglomerates due to electrostatic attraction. There may be two photo-electric sensing mechanisms 62, 64 which operate the metering device 120.
Patent GB-1277257-A (GB)
Title: Production of styrene
IPC: C07C5/56
Filed: 1969-10-29
Abstract: 1277257 Styrene BADISCHE ANILIN- & SODA-FABRIK AG 29 Oct 1969 [30 Oct 1968] 52899/69 Heading C5E Styrene is prepared by dehydrogenating ethylbenzene with oxygen in the presence of iodine, isolating the crude styrene and subjecting it to partial catalytic hydrogenation prior to distillation, to reduce the content of phenylacetylene and iodine compounds. Before hydrogenation the crude styrene is preferably treated with a basic reagent. Partial hydrogenation may be carried out using a mixture of N 2  and inert gas, in the liquid phase at - 15 to 100 C., or in the gaseous phase at 50 to 150 C. Suitable hydrogenation catalysts are Ni, Co, Rh, Ru, Pt and Pd metals supported on active carbon, BaSO 4 , SiO 2  gel or Al 2 O 3 , and may contain regulators such as quinoline sulphide, thiourea, phenylmustard oil or zinc.
Patent GB-1533569-A (GB)
Title: Integrated circuits
IPC: H01L21/822
Filed: 1975-12-30
Abstract: 1533569 Integrated circuits SIEMENS AG 30 Dec 1975 [27 Feb 1975] 53092/75 Heading H1K [Also in Division H3] An IC contains active circuit elements T 1-5 , Fig. 1, provided with integrated capacitors C 1 , C 2  in a high frequency A.C. supply current path. The I.C. is formed in a semiconductor substrate 2, Fig. 2, and an overlying intrinsic layer 2 in which a plurality of transistors T 1 -T 5  is formed by base regions 2, a common emitter formed by the substrate 1, and Schottky collector contacts 5 or semiconductor collector regions. Metal or semi-conductor layers 4 couple one base to a preceding collector, and the collector and base are capacitively coupled to a metal or polycrystalline layer 9 for the current supply. The capacitor may, alternatively, be contributed by a PN junction or a Schottky contact operating in the blocking direction, In other embodiments the active elements may be FETs and the current supply may be three-phase system for supplying different stages of the circuit. In another embodiment, the base and collector zones are strip-shaped and crossed to save space.
Patent GB-1292456-A (GB)
Title: Improvements relating to plugging bores
IPC: F16L55/132
Filed: 1969-10-31
Abstract: 1292456 Wall plugs; pipe stoppers DR ING KOENIG AG 31 Oct 1969 [1 Nov 1968] 53378/69 Headings F2H and F2P An expandable plug which may be employed to plug a bore in a fluid system comprises a sleeve 4 co-operating with a pin 1 in such a way that axial displacement of the pin causes the sleeve to expand radially outwardly. The pin, which may have a portion 7 arranged to break when a predetermined tension is applied to the plug, has, in one embodiment, a tapered head 1a co-operating with a tapered bore in the sleeve 4. In a further embodiment, a sleeve 17 (Fig. 3) having a pair of tapered internal surfaces co-operates with a pair of tapered rings 18, 19 surrounding a blind rivet.
Patent GB-1123070-A (GB)
Title: Apparatus for immobilising infants and very young children for the purpose of x-ray and other medical procedures
IPC: A47D15/00
Filed: 1965-12-16
Abstract: 1,123,070. Restraining patients. S. M. MOLLOY. 15 March, 1967 [16 Dec., 1965; 11 Jan., 1966], Nos. 53547/65 and 1139/66. Heading A5R. [Also in Divisions A4 and H5] A support for a patient, particularly an infant, which support holds the patient immobile, comprises a frame with a seat portion, and a back-rest portion with arm pieces extending from the upper end of said back rest portion, together with means for firmly but releasably holding the patient in a seated position, said means comprising a member fastened round the patient's waist and to the frame and other members fastened round the patient's arms to the arm pieces. In Fig. 1 the support comprises a base board 1 with two superimposed cushions 2 and spaced uprights 3 joined at the bottom by a horizontal bar and by a backboard 5; base 1, and uprights 3 being rigidly connected by corners 6. Backboard 5 extends above uprights 3 and is provided with integral arm pieces 7 and head rest 8, the backboard, arm pieces and head-rest being equipped with a removable washable cover 9. A waist member 11 is made of synthetic plastics or foam material and includes one or more layers 12 of lead rubber which serves, when in position, to protect the gonads of the patient during irradiation treatment. The waist member is fastenable to the base-board via buckle 16 and to the uprights via fastenings 18 and 20. The seating level of the patient can be varied by removing one or both cushions 2. Arm members 21 wrap around the patient's arms and are fastened to arm pieces 7 by belts 22. The back-rest portion as shown in Fig. 2 is adapted to receive and support an X-ray cassette holder, the embodiment illustrated comprising a holder 23 having at the lower end thereof outwardly extending pins 24 which slidably engage in slots 25 in the upright 3, the slots extending to the back surfaces of the uprights so that the cassette may be completely removed if desired. Holder 23 is shaped such that pins 26 may be engaged in slots 27 so as to adjust the height of the cassette. An attachment 30 shown by dotted line in Fig. 1 may be connected to the head piece 8 and consist of an adjustable bar 31 in which the patient's wrists may be held in clips 32 to hold the arms above the head. A cap may be provided to hold the head firm.
Patent GB-1122816-A (GB)
Title: Production of 1,2-dicyanocyclobutane
Inventor: MUELLER HERBERT
IPC: C07C255/45
Filed: 1965-12-17
Abstract: 1,2-Dicyanocyclobutane is made by the dimerization of acrylonitrile at 200-400 DEG  C. under pressure after addition to the acrylonitrile of 0.1-30% by weight of an ester of a carboxylic acid or an ester of an inorganic acid.  The specified carboxylic acid esters include esters of aliphatic and aromatic mono-and di-carboxylic acids. Trimethyl and triethyl borate are specified esters of inorganic acids.  Examples describe the use of dibutyl phthalate and ethyl acetate.  The reaction mixture may include a polymerization inhibitor, e.g. hydroquinone, ammonia or water.